Carnivore diet a ‘terrible idea’ (2024)

Carnivore diet a ‘terrible idea’ (1)

April 5, 2024 — Some social media influencers are promoting a so-called “carnivore diet” made up almost entirely of animal products such as beef, butter, and eggs, claiming that it has cleared their skin and helped them get in shape. While the diet may help people lose weight in the short term if they cut out foods high in sugar and refined carbohydrates, it may have long-term health consequences, said Harvard T.H. Chan School of Public Health’s Walter Willett in a March 30 CNBC article.

By skipping fruits and vegetables, people likely won’t get enough fiber in their diets, which can affect gut health. They also will miss out on carotenoids and polyphenols, substances with antioxidant properties that have been linked to lower risk of chronic diseases such as Type 2 diabetes and some types of cancer. Animal products also contain high amounts of saturated fat and cholesterol.

In addition to the potentially adverse health effects of the diet, Willett, professor of epidemiology and nutrition, noted that industrial production of animal-based foods is harmful to the planet. “There’s also the issue of justice that basically the Global North—Europe [and] the United States—cause most of the problems with climate change that we have today, and this sort of perpetuates that.”

For all these reasons, he said, the carnivore diet “sounds like basically a terrible idea.”

Read the CNBC article: Fitness influencers swear by the ‘carnivore diet’—it’s ‘basically a terrible idea,’ doctor says

Photo: iStock / Hakase

Carnivore diet a ‘terrible idea’ (2024)

FAQs

Is a carnivore diet a bad idea? ›

In the end, our experts can't recommend the carnivore diet. “There are other significantly healthier and more balanced eating strategies that include plant-based foods, which can be used to elicit the same purported results,” Acerra says.

What are the bad results of the carnivore diet? ›

By skipping fruits and vegetables, people likely won't get enough fiber in their diets, which can affect gut health. They also will miss out on carotenoids and polyphenols, substances with antioxidant properties that have been linked to lower risk of chronic diseases such as Type 2 diabetes and some types of cancer.

Has anyone had a bad experience with carnivore diet? ›

Unfortunately, it can introduce new problems over time. Depending on your individual biology, a sustained low-carb plan like the carnivore diet might not work for you. You'll know this is true if you can't get a good night's sleep while you're limiting carbs.

Why do I feel so bad on a carnivore diet? ›

In the carnivore diet, fats become a primary source of energy. If you're not accustomed to a high-fat diet, this sudden change can result in feelings of nausea or even vomiting. This happens because your gallbladder and pancreas, responsible for producing bile and enzymes to digest fats, need to ramp up their activity.

What do doctors think of the carnivore diet? ›

Enter the carnivore diet: a meat-lover's meal plan that embraces all and only animal products. Unlike other high-protein, low-carb diets, zero carbs are allowed. Dietitians and medical experts say the fad is restrictive and dangerous – but supporters are relentless in their enthusiasm toward the approach.

Is carnivore diet cancerous? ›

There is strong evidence that consuming: red meat INCREASES the risk of colorectal cancer. processed meat INCREASES the risk of colorectal cancer. Cantonese-style salted fish INCREASES the risk of nasopharyngeal cancer.

Is carnivore diet bad for your heart? ›

Eating lots of meat can cause serious digestive issues, and eating lots of saturated fats, which are plentiful in the Carnivore diet, can elevate LDL cholesterol (the bad kind!) and increase risk of heart disease.

What happens if you eat carbs on a carnivore diet? ›

Do the carnivore diet and carbohydrates mix well? Digestion problems can arise if you eat carbohydrates on the carnivore diet. This can result from a spike in blood sugar, which can cause heartburn, bloating, or nausea, affecting how food is digested.

Does your breath stink on a carnivore diet? ›

The Carnivore Diet and Bad Breath

Individuals following the carnivore diet may notice an onset of bad breath as a side effect. This largely protein-based diet can result in specific challenges to oral health, but there are strategies to manage and potentially prevent this condition.

How long does it take to feel normal on a carnivore diet? ›

Remember, the carnivore diet is not a quick fix but a lifestyle change. It may take several weeks or even months for your body to fully adapt and for you to start seeing the carnivore diet before and after results you desire. So, keep in mind that patience and consistency are key.

What is the success rate for the carnivore diet? ›

Harvard Carnivore Study

93% improved or resolved obesity and excess weight. 93% improved hypertension. 98% improved conditions related to diabetes.

How long can you be on the carnivore diet? ›

While one person may be able to sustain a carnivore diet for months, or even years, without any health complications, that's certainly not going to be the case for everyone.

Can I drink coffee on a carnivore diet? ›

Yes, you can drink coffee on a carnivore diet. Despite its plant origin, many followers of the carnivore diet still consume coffee, considering caffeine's stimulating properties. However, caution must be taken as excessive intake of caffeine may add stress to the body's metabolism and disrupt sleep patterns.

Why do you poop less on carnivore diet? ›

Eating a low carbohydrate diet, such as the carnivore diet, requires the body to break down glycogen stored in the muscles and liver. Glycogen attaches to water, which the body then expels through the urine. This could lead to dehydration and a lack of water for forming stools.

What happens when you only eat meat for a year? ›

Fans of a 'carnivore diet' might be a little disappointed. Not much – at least in the short term. In a 1928 study, two 'normal' men ate only meat for one year, under the supervision of medical researchers in New York. At the end of the year the men showed “no specific physical changes in any system of the body”.

Is the carnivore diet bad for your liver? ›

Critics of the Carnivore Diet point out potential health risks due to the high saturated fat intake, which can lead to an increased risk of fatty liver disease and elevated levels of LDL cholesterol.

What is Joe Rogan's carnivore diet? ›

Joe Rogan's daily intake, while on the Carnivore Diet, primarily consisted of meat. He often mentioned consuming elk, bison, and other game meats, along with more traditional meats like beef. Organ meats, particularly liver, were also a part of his diet.

Is the carnivore diet better than Keto? ›

The Keto diet is better for gut health, brain health, and overall mood. The Carnivore diet, on the other hand, is not good for gut health, brain health, and mood. The one area where the Carnivore diet outperforms the Keto diet is weight loss. The Carnivore diet is very effective in terms of weight loss.

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